“…The S&P 500 was the first to attract most attention (e.g., Harris & Gurel, 1986;Jain, 1987;Pruitt & Wei, 1989;Shleifer, 1986). More recently, other indices, such as the Dow Jones (Beneish & Gardner, 1995;Polonchek & Krehbiel, 1994), the Canadian TSE300 (Chung & Kryzanowski, 1998), the Italian MIB30 (Barontini & Rigamonti, 2000), the German DAX100 (Deininger, Kaserer, & Roos, 2000), and the Japanese Nikkei 500 (Liu, 2000), have been examined. To date, six hypotheses have been offered to explain the effect of index revisions on stock prices.…”